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Publication of FR1079712ApublicationCriticalpatent/FR1079712A/fr
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B9/00—Exposure-making shutters; Diaphragms
G03B9/08—Shutters
G03B9/36—Sliding rigid plate
G03B9/40—Double plate
G03B9/42—Double plate with adjustable slot; with mechanism controlling relative movement of plates to form slot
Landscapes
Physics & Mathematics
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General Physics & Mathematics
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FR1079712D1949-10-051950-10-04Perfectionnements apportés aux obturateurs pour appareils photographiques
ExpiredFR1079712A
(fr)